Thomas james rayner



(No Model.)

T. J. RAYNER. BVAPORATING APPARATUS.

UNITED STATES PATENT OFFICE.

THOMAS JAMES RAYNER, OF LONDON, ENGLAND.

EVAPORATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 519,969, dated May 15, 1894. Application led November 27, 1893. Serial No. 492|159. (No model.) Patented in Englandy May 31 1893 NO- 10170@ cial Road, Limehouse, in the city of London, England, have invented a new and useful Improvement in Evaporating Apparatus, (for which I have obtained a patent in Great Britain, dated May 3l, 1893, No. 10,700,) ot' which the following is a specification.

In my Patent No. 468,048, dated February 2, 1892, I described a surface condenser.

The object of my present invention is to adapt the apparatus for evaporating liquids, and to accomplish this object my invention consists in the features of construction and the combination or arrangement of parts hereinafter described and claimed, reference being made to thc accompanying drawings, in

which- Figure l is a vertical section on YY of Fig. 2 whlch is a plan on X X of evaporating apparatus according to my invention.

A 1s a cylindrical vessel containing the liquid to be evaporated and having a cover B wlth connections C C for a vapor pipe and safety valve, the latter being provided for the escape of vapor when the pressure becomes too great. In the lower part of the vessel A there is a lateral opening havinga removable cover D secured by bolts and nuts. In this cover are formed several passages F', F2, F2, F4, the uppermost F having a connection for a steam supply pipe, and the lowest F4 havlng a connection of a condensed water pipe. About the middle of the vessel there is a pedestal G on which rests a connecting piece E 1n which are formed passages H H2 H2. A number of spirally bent pipes K K2, dac., connect the passages F in the cover D with the passages II in the casting E. Steam admitted to F passes by the spiral pipe K to the passage H thence by pipe K2 to F2, from F2 by pipe K3 to H2 and so on finally reaching F4 in a more or less condensed state. The connecting piece E may be made in three separate parts each for one of the passages I-I. The liquid to be evaporated is charged into the cylindrical vessel A in any suitable manner, preferably as disclosed by my patent above referred to. The heat vaporizes the liquid surrounding the pipes K, and the vapor rises to the top of the vessel frequently mingled with portions of the liquid carried up by ebullition. In order to prevent the liquid so carried up from passing away by the vapor, I

' suspend from the cover B an inverted cup L to which is attached by brackets M a conical shell N the lower edge of which nearly touches the interior surface of the vessel A. The vapor passes up through the opening at the top of the shell N and is deflected downward by the cup L as indicated by the arrows, the liquid being thus separated from itand deposited on the upper surface of N whence it descends along the interior surface of A to the liquid therein. As before'stated, the lower edge of the shell N, which is in the form of a truncated cone, nearly touches the internal surface of the cylindrical vessel, whereby the condensed liquid is permitted to trickle down, but the main portion of the vapor is compelled to pass up through the center of the This construction and arrangement is shell. advantageous, and provides a very simple and efficient means, whereby the apparatus is adapted for evaporating liquids. When the pipes K require to be cleaned or repaired, the cover D is unbolted and removed bringing with it the pipes K and their connecting piece E the whole of the heating surface as well as the interior of the vessel A being thus made accessible.

Having thus described the nature of this invention and the best means I know of carrying the same into practical effect, I claim- An evaporating apparatus, consisting of a vessel A, a series of convolute coils of pipes communicating with one another for the passage of steam therethrough and located in the lower portion of the vessel, a shell N formed as a truncated cone and having its lower edge two subscribing Witnesses, this 10th day of Nonearly touching the internal surface of the vember, A. D. 1893.

vessel, so that the condensed liquid can trickle THOMAS JAMES RAYNER.

down While the main portion of vapor is com- Vitnesses:

pelled to pass up through the center of the OLIVER IMRAY,

shell, and an inverted cup L suspended from Chcwteiecl Patent Agent, 28 Southampton the top portion of the vessel and arranged Buildings, London, W. C.

over the said shell, substantially as and for JNO. P. M. MILLARD,

the purposes described. Clerk to Messrs. Abel c@ Imrag, Consulting In testimony whereof I have signed my Engineers unal Patent Agents, 28 Southname to this specification, in the presence of ampton Buildings, London, W. C. 

